Type-writer shuttle and driving mechanism therefor.



PATENTED JULY 17, 1906.

J. B. HAMMOND. TYPE WRITER SHUTTLE AND DRIVING MECHANISM THEREFOR.

APPLIOATION FILED OUT-21, 1904. RENEWED JUNE 16,1906.

UNITED STATES JAMES B. HAMMOND,

PATENT onnron.

or'N'Ew YORK, N. Y.

- Specification of Letters Patent.

Patented July 17, 1806.

Application filed October 21. 1904. Renewed June 15. 1906. Serial No. 321,914.

To all whom it may concern:

Be it known that I, J AMES B. HAMMOND, .a

citizen of the United States, residing at New Y-ork'city, New York, have invented certain new and useful Improvements in Type- I Viriter Shuttles and Driving Mechanism Therefor, of which the following is aspecification.-

My invention relates to type-writers of the class known as the Hammond, and con-' cerns particularly an improved form of shuttle and means for driving the same, whereby lightness of the parts is secured and rapidity of operation is permitted.-

The invention consists in the features and combination and arrangement of parts hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan View of a shuttle and its driving mechanism, said shuttle being shown in proper re lation to the hammer. Fig.2 is a central vertical sectional view through the shuttle and its driving mechanism. Fig. 3 is a detail view of means for driving the shuttle.

In the drawings, 1 is the anvil, of ring form, supported upon a post 2, which holds'the said anvilagainst turning .movement. The imroved form of shuttle consists of a ring of hard rubber which fits against the outer face of the anvil and is provided with a flange 4, extending entirely around the upper edge of the shuttle'a'nd projecting inwardly therefrom. This flange rests upon-the upper edge .ofthe anvil, and thus supports the ringshaped shuttle. The shuttle is 'made very thin to secure lightness and to allow rapidity of operation, and the flange 4, serves as a strengthening means for the shuttle. I also utilize the flange as. the meansof connection with the shuttle-arm: This shuttle-arm is shown at 5 and includes a vertical portion, the upper end of which passes through an eyelet or bushing 6, embeddedin the harding or eyelet being'riveted to the flange. The said arm also has a horizontal portion provided with a sleeve 7,fitting around the anvilrubberfla'ngee of the'shuttle, the saidbush rapidity of operation I interpose speed-dogs or supplemental drivingarms 10 between the drivers 9 and the shuttle-arm 5. These speed-dogs arecarried eachby a sleeve 11', 6owhich extends one within the other,-and both lie within the hub or sleeve 7 of the shuttle arm.

The speed-dogs or supplemental drivers are adapted to swing in a horizontal plane and are provided'with pins 13, adapted to beengaged by the teeth 14 of-the main drivers 9. These speed-dogs are provided with notches 15 and are adapted to engagea pin 16 on the shuttle-arm to swing the same in either one direction or the other, according to which speed-dog is 0 erated. The speed-dogs are of course capa 1c of movement independent of each other, and, supposing one of themfor instancethe one at the right of Fig. 1.to 7 5' be swung toward the left and the pin 16 to be engaged thereby and the shuttle moved leftward,-as soon as the key is released the o erator can immediately strike a key on t e j left ofthe keyboard and the left-handspeeddog will immediately be in to swim and followup the movement 0 the shutt e toward the right until the proper position is reached and the stop-arm strikes the stop-pin. m

' In certain machines of this type it has been 8 5 necessar after depressing, for instance,--a

key. on t e right 9f the machine to allow the shuttle-arm'and shuttle to regain their central position beforea key on the left could be struck; but wlth the improved arrangementof driving "mechanism in which-the speeddogs are emplo ed it is not-necessary to wait until the shutt e and shuttle-arm have been returned to normal or central position before strikin the key to move the shuttle in the op- 5 posite' irection-frorn that inwhichit was formerly moved, for it will be obvious that by reason of the employment of the speed-dog and the connection between the main drivingarms and the said do s one dog may advance roo' simultaneously with t e return movement of f the other dog, and-thus the shuttle may continue'to move ast its central position under the pressure 0 the key last struck In order to secure an easy movement of the shuttle, ball-bearings m may be provided between the overhanging flange thereof and the anvil, andthese ball-bearings may be located inpockets or a groove in the u Cper edge of the anvil,- where theymay be hel any suitable manner. The shuttle also ma have rolling contact at the points 17, suc

in no thin and strengthened by the flan e formed -vil, a ring-shaped shuttle having an integral contact bein provided by means of rollers 18, journale 1n the anvil and having their -to serve as a driving part between the said 7 shuttle and the'shuttle-arm.

outer peripheries bearing upon the inner side of the shuttle.

From the above it will be seen that I provide a shuttle of hard rubber which is very integrally therewith and that I uti 'ze a portion of the film-like shuttle itself for the connection with the shuttle-arm.

I do'not limit myself to the precise connection shown, as this mi ht be varied; but I prefer in any case to uti 'ze a rojecting portion of the hard rubber from t e shuttle-ring The shuttle may carry different fonts of type, andthesemay be brou ht into use sim' ply by'lifting the shuttle an turning it until the proper font or set of type is inposition for printing, when the shuttle is rengaged with its arm 5. 'The flange of the shuttle is therefore provided with a series of eyelets or bushings 6 for receiving the shuttle-arm.

Iclaim as my invention Y 1 In combination in a type-writer, an anvil in the formof a complete ring, a shuttle also of complete ring form surrounding the anvil, and provided with a flange at its upper edge resting u on the upper edge of the anvil, said anvi having working within it a shuttle-arm in connection with a part of the said flange, substantially as described.

I 2. In combination in a type-writer, an anvil, a shuttle of complete ring form of hard rubber having an integralflange extending around the same to serve as a strengthening means, said shuttle being open vertically within the flange, substantially as described.

3. In'combination, in a type-writer, an anprojecting'portion of hard rubber at the extreme upper-edge and a shuttle-arm engaging said ortion.

4. n combination, in a type-writer, an anvil, a ring-shaped shuttle having a flange at its extreme upper edge overhanging the anvil, and a shuttle-arm connected with the said flange, substantially as described. 1

'5. In combination with an anvil, a shuttle in the form of a complete ring surrounding the anvil and provided with a flange at its upper edge extending continuously about the 6. In combination with a shuttle, a shuttle-arm, drivers one for each side of the shut- 'tle, and the speed-dogs or supplemental drivers one for each side of the shuttle interposed between the main drivers and the shuttle-arm, substantially as described.

7. In combination, an anvil, a shuttle, a

shuttle-arm, a pair of s eed-dogs or supplemental drivers arran .e to swing around the anvil-post and main rivers for operating the supplemental drivers, substantially as descri ed.

8. In combination, the anvil, a shuttle, a shuttle-arm, a pair of speed-dogs arranged to swing about the anvil-post, a pin on the shuttle-arni to be engaged by the s eed-dogs, pins on the speed-dogs and drivers aving toothed portions to engage the pins, substantially as described.

9. In combination, a shuttle in one piece to swing both ways to carry the type to the printing '-point, speed dogs arran ed normally in divergent relation, and a apted to drive the shuttle, said s eed-dogs moving about the axis of the s uttle, and main drivers for o erating the speed-dogs, substantially as escribed.

10. Atype-writer shuttle of circular form, having a continuous flange extending about the same, the space Withinthe inner edge of the flange being free vertically, substantially as described. I

I In testimonywhereof I aflix my signature in presence of two witnesses.

- JAS. B. HAMMOND.

Witnesses:

Rosoon K. INGALLS, FANNIE' FIsK. 

